Publications [#262884] of Tuan Vo-Dinh

Papers Published

1. Mobley, J; Vo-Dinh, T, Opto-ultrasonic system for generation of ultrasound and optical detection, Proceedings of SPIE the International Society for Optical Engineering, vol. 4615 (January, 2002), pp. 173-179, SPIE [12.466645], [doi]
   (last updated on 2026/01/21)

   Abstract:
   In this work, we examine a system that exploits the photoacoustic effect to act as an ultrasonic pulse generator and an optical detector. At the core of the system are a solid substrate and an optical absorber. To test the performance as an ultrasonic generator, several substrate-absorber (SA) combinations are examined. The pulses generated by these systems are evaluated based on their bi-directional symmetry and characteristics of their Fourier spectra. To demonstrate the use of the SA system as an optical detector, a linearity study was performed for one specific choice of substrate and absorber. These substrate-absorber systems exhibit a variety of behaviors, and form a versatile set of tools for ultrasound, optical and hybrid use.

   Keywords:
   Ultrasonics;Acoustic generators;Photodetectors;Fourier optics;Light absorption;Data acquisition;Optical parametric oscillators;Neodymium lasers;Optical filters;Piezoelectric transducers;Laser pulses;Mirrors;